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(No Model.) 2 Sheets-Sheet 1.

D. s.' EINES, W. A, PEEEY ze e; e. WO'ETEINETOE, No. 289,535.

DOUBLE AeTlNe PUMP.

Pafented Deo. 4, 1883.

(No Modem f 2 sheets-sheet 2.

D. S. EINES, W. A. PERRY` `EL C. C. WORTH'INGTO'N. DOUBLE ACTING PUMP. No. 289,535'. PatentedlDeo. 4, 18,83.

Fiyi

UNITED STATES` i PATENT OEEICE.

DAUPHIN S. HINES, OF BROOKLYN, VILLIAM A. PERRY, OF BAY RIDGE, AND CHARLES O. VVOR'II-IINGTON, OF IRVINGTON, NEW YORK.

DOUBLE-ACTING PUM P.

SPECIFICATION forming part of Letters?.` Patent No. 289,535, dated December 4, 1883.

Application mea Apri114,1ssa. (No model.)

To a/ZZ whom it may concern;

Be it known that we, DAUPHIN S. HINEs, WILLIAM A. PERRY, and GHARLEs @WORTH- INGTON, citizens of the United States, residing, respectively, in the city of Brooklyn, county of Kings, and State of N ewYork, and in the town of Bay Ridge, county of Kings, and State of New York, and in the town of Irvington, county of Westchester, and State of New York, have jointly invented certain new and useful Improvements in Multiple Packed Plunger Pumps, fully described and `represented in the following specification and the i accompanying drawings, forminga part of the same.

The present invention relates, generally, to that class of pumps which are provided with two or more water-cylinders, andparticularly to that class known as packed plunger pumps,77 it being the object of the invention to simplify and improve the construction of these pumps, so as to lessen the cost of production and facilitate the renewal of wornout parts.

To these ends the invention consists in certain features of construction and organization whereby these results are accomplished,

v all of which will be hereinafter fully explained and particularly pointed out.

In the accompanying drawings, Figure 1 is a plan view of a multiple packed plunger pump embodying the invention, one of the lwater-cylinders being shown in cross-section,

and one with the force-chamber removed. Fig. 2 is a side elevation of the same, showing one of the water-cylinders and its force and suction chambers in vertical section, and.

also showing one of the plungers in partial section; and Fig. 3 is a vertical cross-section of one of the water-cylinders and itsforce and suction chambers.

The present invention, although applicable to multiple pumps generally, is shown in the present case as embodied in a duplex pump each side of which consists of two water-cylinders, 10, two suction chambers, 11, two force-chambers, 12, and a double-acting plunger, 13, the whole constituting four substantially independent pumps, A B C D. These four pumps are arranged in two pairs, A B and C D, as shown in Fig. 1', the plungers being located between them, so that their opwhich give to them the required degree of strength, and with a number of valve-open ings, (nine, as shown in the present case,)

through which the water is drawn into and` ejected from the cylinders. To secure the bestresults, the aggregate area of the open- 7o ings in each of the plates should be equal or about equal to the area of the plunger, so that the water will pass through said openings at a comparatively low velocity. The

induction and eduction valves 7 Sare of the usual construction, and are provided with raised seats, as shown in Figs. 2 and 3, so

that dirt or sand passing into the pumps is` prevented from accumulating beneath the valves. By causing the valve-seats to project above the plates in this manner, there is also provided a sufiicient amount of stock to permit of the seats being faced olf when worn without destroying the plates or lowering the valves into the dirt. The suction-chambers are provided upon opposite sides with openings 17, of like size, as shown in Fig. 3, the inside openings of each pair of chambers coming together, so as to afford free communication between the two. The outside opening of one of each pair of the chambers is closed by a suitable cap or cover, 18, (see Fig. 1,) while the corresponding opening of the other of said chambers communicates with the suction-pipe 19. The water-cylinders are also provided at opposite sides with openings 20, of suflicient size to receive the ends of the plungers, as shown in Fig. 2. The inside openings of the cylinders standing opposite each other receive the opposite ends of the Ioo sible to operate the plunger from either side of the pump, and also to place either side of the water-cylinders to the front. The four water-cylinders are also provided with cleaning-holes, as 24, having suitable removable covers, through which the interior of the cylinders can be reached for the removal of dirt or the adjustment or repair of the inductionvalves. The force-chambers are provided at their tops with outlet-openings 25, which connect, through branches 26, with the main outlet-pipe 27, which latter is provided with the usual delivery-T, 28, and air-chamber 29. The force-chambers are also provided with cleaning-holes 30, having removable covers 81, through which the interior of the chambers can be reached for removing dirt or adjusting or repairing the eduction-valves. The plunger-rods 14, instead of being secured directly to the plun gers, are secured to removable pieces 6, bolted to the ends of the plun gers, thus making it possible to remove and replace the plungers without disturbing the rods, and to renew one part without sacriiicing the others. The heads of the plungers are provided with screw- ,plugs 5, (see Fig. 2,) by which the water is *prevented from entering and circulating in their interior.

From the foregoing it will be seen that each of the four pumps constituting the duplex pump. is of eXactly the same size and construction as the others, and also that the corresponding parts in the several pumps are exact duplicates, so that not only can either one of the four be substituted for any other, but that any part of any one can be substituted for the corresponding part of any other, and, further, that the induction and eduction valve plates and valves in each pump are exact duplicates, and can be used in either position. This feature of interchangeability is one of great importance in a pump of this character,

as it not only lessens the cost of production by avoiding the necessity of producing a largel number of parts differing from each other in shape and size, but greatly simplifies the operation of assembling the parts and setting up the pump, and to a still greater extent facilitates the replacing of broken or worn-out parts. By making the corresponding parts in all the pumps exact duplicates of each other, it not only becomes practically impossible to 'make a mistake in ordering a new part, but

the number of different parts is so reduced that it is practicable for a person operating one of these pumps to keep on hand a single set of the parts, so that a broken or worn-out part can be replaced without the delay incident to ordering the same from the manufac- 7o turer. By reason of this construction and arrangement, it is also possible to introduce the water from either side of the pump, which can readily be done by shifting the pipe 19 to the opposite side ofthe pump, as indicated in dotted lines in Fig. 1, and it may also be turned so as to draw the water from the Jopposite direction. The water may also be discharged in any direction desired by shifting the position of the delivery-T, which can be readily done' by removing the bolts which secure it to the pipe 27. By reason ofthe openings 20 upon the opposite sides of the water-cylinders, it becomes an easy matter, as vwill readily be seen, to reverse the plungers 8 5 and shift the stuffing-boxes 23 and plungerrods 14, so as to operate the plungers from either side of the pump. All of these are features of great importance in pumps of this class, as these pumps are frequently located 9o in mines and other places where the space is contracted, and where it is impossible to determine the exact relative position which the parts must occupy prior to the actual setting up of the machine.

What we claim is- A multiple pump consisting of a plurality of independent pumps, as A B CD, so constructed as to be interchangeable both as a whole and as to each particular part, each of said IOO pumps being provided upon its opposite sides with openings, as 20, which are adapted to receive the stufng-box of either the plunger or the plunger-rod, and also with openings, asl 17, by which the induction-pipe can be at- 105 tached at either side, all substantially as described.

In testimony whereof we have hereunto set our hands in the presence of two subscribing witnesses.

D. S. EINES. XV. A. PERRY. OHAS. C. VORTHINGTON.' Vitnesses:

VALTER l). EDMoNns, DANIEL H. JouNsoN. 

